Electric height-adjustable desk

ABSTRACT

An electric height-adjustable desk is provided which comprises a desk board body comprising a desk board, and a frame disposed at the bottom of the desk board, and the desk board and the frame are connected to integrally form the desk board body; a lifting assembly, connected to the bottom of the desk board body, and comprising a transmission rod, two lifting columns and one drive motor, wherein the drive motor is in transmission connection with the two lifting columns through the transmission rod to drive the two lifting columns to ascend and descend; the transmission rod, the two lifting columns and the drive motor are connected to integrally form the lifting assembly; a base, connected to lower ends of the two lifting columns; a groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body; a manual controller and a human-machine interaction interface of the manual controller is disposed at an outer side wall of the desk board body. The electric height-adjustable desk provided makes the space under the desk board increased to allow users to place legs freely and help users to avoid touching the desk, while being simple in structure and fast in assembly, the manual controller is not easy to be accidentally touched by users to ensure high safety.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a 371 International Patent Application No. PCT/CN2020/106726, filed on Aug. 4, 2020, which claims the priority and benefit of Chinese patent application number 201922084688.7, filed Nov. 28, 2019, Chinese patent application number 201922084662.2, filed Nov. 28, 2019; Chinese patent application number 201922445035.7, filed Dec. 30, 2019 with China National Intellectual Property Administration, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to the technical field of office equipment, and in particular to an electric height-adjustable desk.

BACKGROUND

Height-adjustable desks which are also called study desks or height-adjustable office desks are capable of meeting, using their own height adjustability characteristics, the needs of persons of different heights for working healthily while sitting and standing alternately. At present, more and more office workers choose to work with a height-adjustable desk. In the prior art, a height-adjustable desk usually comprises an electric height-adjustable desk and a manual height-adjustable desk, where the former realizes ascent and descent by using a motor while the latter realizes ascent and descent by using a rocking handle. The electric height-adjustable desk may further comprise a single-motor electric height-adjustable desk and a dual-motor electric height-adjustable desk. The single-motor electric height-adjustable desk drives two lifting columns to ascend and descend by using one motor at the same time, and the dual-motor electric height-adjustable desk have two motors each of which corresponds to one lifting column. The electric height-adjustable desk generally comprises two bases, two lifting columns, a desk board, a desk board frame, and a drive motor, where lower ends of the two lifting columns are connected with the two bases respectively, two upper ends of the two lifting columns are connected with one cross beam, a screw rod lifting mechanism is disposed in each lifting column, the drive motor and a controller of the drive motor are mounted on the cross beam, the top of the cross beam is connected with the desk board frame, a transmission rod in transmission connection with the drive motor is disposed along a length direction of the cross beam, and two ends of the transmission rod are in transmission connection with the screw rod lifting mechanisms in the two lifting columns respectively.

In the prior art, the two lifting columns of the electric height-adjustable desk are separated and thus need to be assembled by a user after purchase, bringing trouble to the user. Furthermore, the assembly of the two lifting columns requires adjustment to a transmission position of the transmission rod and the two lifting columns need to be mated with the drive motor. Therefore, the entire assembly efficiency of the height-adjustable desk is affected. Furthermore, the desk board and the desk board frame are separated and thus need to be assembled separately, complicating the assembly. Further, the cross beam between the two lifting columns and the transmission rod are disposed at the bottom of the desk board frame in a downward protrusion manner, which affects a space under the desk board. In this case, users may touch the cross beam and the transmission rod inadvertently at work, bringing poor experiences to the users.

In addition, in order to facilitate controlling the ascent and descent of the electric height-adjustable desk, the electric height-adjustable desk is usually provided with a manual controller. The manual controller is in electrical connection with the controller of the drive motor to send an instruction to the controller so as to control the drive motor to work. In the prior art, the manual controller of the electric height-adjustable desk is usually mounted at a side of the bottom of the desk board close to a user, or placed on a desktop of the electric height-adjustable desk, or embedded into the desk board. When the manual controller is disposed at the bottom of the desk board, the manual controller will protrude downwardly. In this case, the manual controller occupies the space under the desk board and can be easily touched by the user, leading to inconvenience of use. When the manual controller is placed on the desk board, the manual controller occupies the space of the desktop. When the manual controller is embedded into the desk board, a groove is to be opened on the desk board, having high requirements for mounting accuracy and processes and complicating the operations.

During ascent or descent, the electric height-adjustable desk in the prior art sends instructions to a user by means of buttons or screen or changes of patterns on the manual controller. Due to small volume of the manual controller, the button, or screen or change of patterns on the manual controller does not have strong indication to the users during ascent or descent, giving a low entire technical sense and a poor experience to the users.

SUMMARY

In order to overcome the above technical defects, the present invention provides an electric height-adjustable desk, which has a high safety level and is structurally simplified, and fast assembled and the space under the desk board can be increased to allow users to place legs freely and help users to avoid touching the desk.

The technical solution of the present invention provides an electric height-adjustable desk, comprising:

a desk board body, comprising a desk board, and a frame disposed at the bottom of the desk board, and the desk board and the frame are connected to integrally form the desk board body;

a lifting assembly, connected to the bottom of the desk board body, and comprising a transmission rod, two lifting columns and one drive motor, and the drive motor is in transmission connection with the two lifting columns through the transmission rod to drive the two lifting columns to ascend and descend; the transmission rod, the two lifting columns and the drive motor are connected to integrally form the lifting assembly; and

a base, connected to lower ends of the two lifting columns. A groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body. When the lifting assembly is connected to the bottom of the desk board body, the transmission rod is located in the grooves.

Preferably, a cross beam is disposed between the two lifting columns, both ends of the cross beam are fixedly connected with upper ends of the two lifting columns respectively, the cross beam is disposed in the grooves of the frame and the transmission rod is disposed in the cross beam.

Preferably, a bottom surface of the cross beam is flushed with a bottom surface of the frame.

Preferably, a mounting groove is disposed at a side wall of a side of the desk board body close to the user, a drawer is slidably connected in the mounting groove, and the bottom of the drawer is flushed with the bottom of the desk board body.

Preferably, the desk board is a glass desk board, the frame is a metal frame, the desk board is fixedly connected to the top of the frame, and a top wall of the drawer is provided with an elastic pad which is elastically abutted against the bottom of the desk board.

Preferably, the frame comprises an outer frame and a cross bar connected within the outer frame, and the groove is disposed on the cross bar and penetrated through the bottom of the cross bar.

Preferably, a connection rod perpendicular to the cross bar is connected within the outer frame; a connection plate is fixedly connected on the upper end of each lifting column, and the connection plate has a first connection portion fixedly connected with the connection rod and a second connection portion fixedly connected with the bottom of the outer frame; a distance from a side wall of the desk board body close to the user to the connection rod is greater than a distance from a side wall of the desk board body away from the user to the connection rod.

Preferably, a pull rod is disposed between the two lifting columns, and both ends of the pull rod are fixedly connected to lower ends of the two lifting columns respectively.

Preferably, the electric height-adjustable desk further comprises a controlling unit, the controlling unit comprises a controller and a manual controller, and the controller is in electrical connection with the drive motor and the manual controller; a human-machine interaction interface of the manual controller is disposed at an outer side wall of the desk board body.

Preferably, a gap is disposed at an outer side wall of the frame, the manual controller is connected in the gap, and the human-machine interaction interface of the manual controller is in smooth transition with an outer side surface of the frame.

Preferably, the gap is disposed at an end of the outer side wall of a side of the frame close to the user.

Preferably, the bottom of the manual controller is flushed with the bottom of the frame, and a plane where the human-machine interaction interface of the manual controller is located is flushed with a plane where the outer side wall of the side of the frame close to the user.

Preferably, the controller is in electrical connection with the drive motor to control the drive motor to run; a USB charge interface is disposed at the outer side wall of the desk board body, and the USB charge interface is in electrical connection with a circuit of the controller.

Preferably, a luminous body is connected on at least one outer side wall of the desk board body, and the luminous body is in electrical connection with the controller so as to be powered to illuminate when the controller controls the drive motor to run. Preferably, the luminous body is an LED lamp strip, the luminous body is disposed at a left side wall and a right side wall of the desk board body and a rear side wall of a side of the desk board body away from the user, and both ends of the luminous body both extend to a front side wall of a side of the desk board body close to the user.

Preferably, the luminous body is connected between the desk board and the frame.

Compared with the prior art, the electric height-adjustable desk with the above structure in the present invention has the following advantages.

1. The desk board body, the lifting assembly and the base of the electric height-adjustable desk are all disposed independently, that is, the electric height-adjustable desk has an integrated desk board body, and an integrated lifting assembly and a base. Therefore, when a user purchases the height-adjustable desk, it is only required to connect the upper end of the lifting assembly with the desk board body, and connect the lower end of the lifting assembly with the base without performing assembling for the desk board body or the lifting assembly. In this way, the assembling time of the user can be shortened to realize fast assembly and bring good experiences to the user.

2. A groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body. When the lifting assembly is connected at the bottom of the desk board body, the transmission rod is located in the grooves. Further, a cross beam is disposed between the two lifting columns, and both ends of the cross beam are fixedly connected with the upper ends of the two lifting columns respectively; the cross beam is disposed in the grooves of the frame, the transmission rod is disposed in the cross beam, that is, the cross beam and the transmission rod are both located in the grooves; namely, the cross beam and the transmission rod are hidden in the desk board body, such that the bottom surface of the cross beam is flushed with the bottom surface of the frame. In this way, the protruding disposal of the cross beam under the desk board body is avoided to increase an effective space under the desk board body so as to help the user to freely place or move his legs. Furthermore, the entire desk board body is simplified. The disposal of the cross beam makes the connection of the two lifting columns more reliable and stable.

3. The design of the drawer helps the user to place articles and increases a storage function of the height-adjustable desk. Further, the disposal of the elastic pad on the top of the drawer, one the one hand, achieves the effect of supporting the desk board, and on the other hand, prevents the drawer from unexpectedly sliding out by use of a friction with the bottom of the desk board.

4. The connection rod is disposed on the frame and the connection plate is disposed on the upper ends of the lifting columns, such that the lifting columns and the desk board body can be connected more reliably and stably, where the connection plate has a first connection portion fixedly connected with the connection rod, and a second connection portion fixedly connected with the bottom of the outer frame.

5. The disposal of the pull rod makes the connection of the two lifting columns more reliable and stable, such that the integral disposal of the lifting assembly is more stable.

6. The human-machine interaction interface of the manual controller of the electric height-adjustable desk is disposed at the outer side wall of the desk board body. In this way, unexpected startup of the human-machine interaction interface of the manual controller due to false touch by a user can be avoided, leading to higher safety level. The manual controller of the electric height-adjustable desk is disposed in a gap at the outer side wall of the frame of the desk board body, and the human-machine interaction interface of the manual controller is in smooth transition with the outer side surface of the frame. Thus, the manual controller is prevented from protruding downwardly from the desk board body. In this case, the false touch of the manual controller by a user can be avoided, and the manual controller and the desk board body can be connected more entirely and more reliably. The gap is disposed at an end of the outer side wall of the frame close to the user, the bottom of the manual controller is flushed with the bottom of the frame, and the plane where the control panel of the manual controller is located is flushed with the plane where the outer side wall of the side of the frame close to the user is located. With this disposal, the manual controller is located at a corner of a side of the desk board body close to the user, which further prevents the manual controller from being touched by the user by mistake.

7. The luminous body is connected on at least one outer side wall of the desk board body, and the luminous body is in electrical connection with the controller to be powered to illuminate when the controller controls the drive motor to run. Preferably, the luminous body is an LED lamp strip which is preferably disposed at the left side wall and the right side wall of the desk board body and the rear side wall of a side of the desk board body away from the user, and both ends of the luminous body both extend to the front side wall of a side of the desk board body close to the user. In this configuration, after the manual controller sends an ascent/descent signal to the controller, the luminous body will illuminate when the drive motor runs. Thus, a strong indication will be given to the user, increasing the entire technical sense of the height-adjustable desk and improving the use experiences of the user. The circuit may control the luminous body to illuminate of different brightness or light of descending or ascending brightness or illuminate of different colors or different brightness according to the ascend or the descent of the height-adjustable desk, or give waning light when the height-adjustable desk ascends to the highest position or descends to the lowest position or the like. Therefore, when the height-adjustable desk ascends or descends, a strong indication can be given to the user, thus increasing the entire technical sense and improving the experiences of the user.

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIG. 1 is a structural schematic diagram of a front of an electric height-adjustable desk according to a first embodiment of the present invention.

FIG. 2 is a structural schematic diagram of a desk board body of an electric height-adjustable desk according to a first embodiment of the present invention.

FIG. 3 is a structural schematic diagram of another angle of an electric height-adjustable desk according to a first embodiment of the present invention.

FIG. 4 is a schematic diagram of an assembly structure of an electric height-adjustable desk according to a first embodiment of the present invention.

FIG. 5 is a schematic diagram of a front structure of an electric height-adjustable desk according to a second embodiment of the present invention.

FIG. 6 is a structural schematic diagram of a desk board body of an electric height-adjustable desk according to a second embodiment of the present invention.

FIG. 7 is a schematic diagram of an assembly structure of an electric height-adjustable desk according to a second embodiment of the present invention.

FIG. 8 is a schematic diagram of a front structure of an electric height-adjustable desk according to a third embodiment of the present invention.

FIG. 9 is a structural schematic diagram of a desk board body of an electric height-adjustable desk according to a third embodiment of the present invention.

FIG. 10 is a schematic diagram of an assembly structure of an electric height-adjustable desk according to a third embodiment of the present invention.

Reference numerals of the drawings are described below: 1. desk board body, 100. desk board, 101. frame, 102. mounting groove, 103. drawer, 104. outer frame, 105. cross bar, 106. connection rod, 107. groove, 108. gap, 2. lifting assembly, 200. lifting column, 201. cross beam, 202. pull rod, 203. drive motor, 204. transmission rod, 205. connection plate, 206. first connection portion, 207. second connection portion, 3. base, 4. controller, 5. USB charge interface, 6. manual controller, 600. human-machine interaction interface, 7. luminous body.

EMBODIMENTS

The present invention will be detailed further in conjunction with the accompanying drawings and the specific embodiments.

Embodiment One

As shown in FIGS. 1-4 , the present invention provides an electric height-adjustable height, comprising a desk board body 1. The desk board body 1 comprises a desk board 100 and a frame 101 disposed at the bottom of the desk board 100, and the desk board 100 and the frame 101 are connected to integrally form the desk board body 1; the frame 101 comprises an outer frame 104 and a cross bar 105 connected within the outer frame 104, two cross bars 105 are disposed, and a groove 107 is disposed on the cross bar; a mounting groove 102 is disposed at a side wall of a side of the desk board body close to a user, the mounting groove is located between the two cross bars 105, a drawer 103 is slidably connected in the mounting groove 102, and the bottom of the drawer 103 is flushed with the bottom of the desk board body 1. The drawer 103 is slidably connected through two slide rails which are fixedly connected with inner side walls of the two cross bars; the desk board 100 is a glass desk board, the frame 101 is a metal frame, and the desk board 100 is fixedly connected on the top of the frame 101, an elastic pad (not shown) is disposed on a top wall of the drawer 103, and the elastic pad is elastically abutted against the bottom of the desk board 100.

The electric height-adjustable desk further comprises a lifting assembly 2, connected with the bottom of the desk board body and comprising a cross beam 201, a transmission rod 204, two lifting columns 200 and one drive motor 203. The drive motor 203 is in transmission connection with the two lifting columns 200 through the transmission rod 204 to drive the two lifting columns 200 to ascend and descend, and the cross beam 201, the transmission rod 204, the two lifting columns 200 and the drive motor 203 are connected together to integrally form the lifting assembly 2. The electric height-adjustable desk further comprises a base 3, connected with lower ends of the two lifting columns 200. A groove 107 for embedding the transmission rod 204 is disposed at the bottom of the frame 101 of the desk board body 1. When the lifting assembly 2 is connected to the bottom of the desk board body 1, the transmission rod 204 is located in the grooves 107. A cross beam 201 is disposed between the two lifting columns 200, and both ends of the cross beam 201 are fixedly connected with upper ends of the two lifting columns 200 respectively. The cross beam 201 is disposed in the grooves 107 of the frame 101 and the transmission rod 204 is disposed in the cross beam 201. A plane of the bottom of the cross beam 201 is flushed with a plane of the bottom of the frame 101. The groove 107 is disposed on the cross bar 105 and penetrated through the bottom of the cross bar 105. A pull rod 202 is disposed between the two lifting columns 200, and both ends of the pull rod 202 are connected with lower ends of the two lifting columns 200 respectively. The lifting column 2 is also called a lifting desk leg comprising an outer pipe and an inner pipe slidably mated in an inner hole of the outer pipe. A linear lifting mechanism, which is also called a linear push rod mechanism, is disposed in an inner hole of the inner pipe. The linear lifting mechanism comprises a screw rod which is rotatably connected to an upper end of the inner pipe through a bearing; a base, thread-connected to the screw rod, where a support pipe is connected at an outer side wall of the base, and a lower end of the support pipe is connected with a lower end of the outer pipe. The screw rod rotates such that the base, together with the support pipe, is moved along a length direction of the screw rod. In this way, the outer pipe slides relative to the inner pipe to enable the lifting column to ascend or descend. The lifting column is an existing product with mature technology, which can be referred to the lifting column disclosed by the publication number CN207659000U and the height-adjustable desk leg disclosed by the publication number CN207626789U. As a result, no detailed descriptions are made to the lifting column in the present invention. The transmission rod 204 is disposed in the cross beam 201, the drive motor 203 is in transmission connection with the transmission rod 204, and both ends of the transmission rod 204 are in transmission connection with the linear lifting mechanism in the two lifting columns respectively.

As shown in FIG. 2 , a connection rod 106 perpendicular to the cross bar 105 is connected in the outer frame 104; a connection plate 205 is fixedly connected on the upper end of each lifting column 200, and the connection plate 205 has a first connection portion 206 fixedly connected with the connection rod 106 and a second connection portion 207 fixedly connected with the bottom of the outer frame 104; a distance from a side wall of the desk board body 1 close to the user to the connection rod 106 is greater than a distance from a side wall of the desk board body 1 away from the user to the connection rod 106. The connection rod 106 is disposed on the frame 101 and the connection plate 205 is disposed on the upper ends of the lifting columns 200, such that the lifting columns 200 and the desk board body 1 can be connected more reliably and stably, where the connection plate 205 has the first connection portion 206 and the second connection portion 207. A controller 4 is connected in the desk board body 1 and is in electrical connection with the drive motor 203 to control the drive motor 203 to run. A USB charge interface 5 is disposed at an outer side wall of the desk board body 1 and is in electrical connection with the controller 4. The USB charge interface 5 is provided for charging a mobile phone.

Embodiment Two

As shown in FIGS. 5-7 , the present invention provides an electric height-adjustable desk, further comprising a controlling unit. The controlling unit comprises a controller 4 and a manual controller 6 and the controller 4 is in electrical connection with the drive motor 203 and the manual controller 6. A human-machine interaction interface 600 of the manual controller 6 is disposed at the outer side wall of the desk board body 1. In this way, unexpected startup of the human-machine interaction interface of the manual controller due to false touch by a user can be avoided, leading to higher safety level. The manual controller 6 is disposed in a gap 108 at the outer side wall of the frame 101, and the human-machine interaction interface 600 of the manual controller 6 is in smooth transition with the outer side surface of the frame 101. Thus, the manual controller 6 is prevented from protruding downwardly from the desk board body. In this case, the false touch of the manual controller by a user can be avoided, and the manual controller and the desk board body can be connected more entirely and more reliably. The gap 108 is disposed at an end of the outer side wall of the frame 101 close to the user, the bottom of the manual controller 6 is flushed with the bottom of the frame 101, and the plane where the human-machine interaction interface of the manual controller 6 is located is flushed with the plane where the outer side wall of the side of the frame 101 close to the user is located. With this disposal, the manual controller is located at a corner of a side of the desk board body close to the user, which further prevents the manual controller from being touched by the user by mistake. The human-machine interaction interface 600 may be a button type operation panel or a touch control display screen. Other technical solutions of this embodiment are similar to embodiment 1 as above and thus will not be repeated herein.

Embodiment Three

As shown in FIGS. 8-10 , the present invention provides an electric height-adjustable desk. A luminous body 7 is connected on at least one outer side wall of the desk board body 1, and the luminous body 7 is in electrical connection with the controller to be powered to illuminate when the controller controls the drive motor to run. The luminous body 7 is an LED lamp strip which is disposed at the left side wall and the right side wall of the desk board body 1 and the rear side wall of a side of the desk board body 1 away from the user, and both ends of the luminous body 7 both extend to the front side wall of a side of the desk board body 1 close to the user. The luminous body 7 is connected between the desk board 100 and the frame 101. Preferably, the luminous body 7 is an LED lamp strip. In this configuration, after the manual controller 6 sends an ascent/descent signal to the controller, the luminous body 7 will illuminate when the drive motor 203 runs. Thus, a strong indication will be given to the user, increasing the entire technical sense of the height-adjustable desk and improving the use experiences of the user. A circuit may control the luminous body 7 to illuminate of different brightness or light of descending or ascending brightness or illuminate of different colors or different brightness according to the ascend or the descent of the height-adjustable desk, or give waning light when the height-adjustable desk ascends to the highest position or descends to the lowest position or the like. Therefore, when the height-adjustable desk ascends or descends, a strong indication can be given to the user, thus increasing the entire technical sense and improving the experiences of the user. Other technical solutions of this embodiment are similar to the embodiment Two and thus will not be repeated herein.

The above descriptions are merely made to the specific embodiments of the present disclosure and the scope of protection of the present invention is not limited to these embodiments. Any changes or substitutions easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be indicated by the scope of protection of the claims. 

1. An electric height-adjustable desk, wherein it comprises: a desk board body, comprising a desk board, and a frame disposed at the bottom of the desk board, and the desk board and the frame are connected to integrally form the desk board body; a lifting assembly, connected to the bottom of the desk board body, and comprising a transmission rod, two lifting columns and one drive motor, and the drive motor is in transmission connection with the two lifting columns through the transmission rod to drive the two lifting columns to ascend and descend; the transmission rod, the two lifting columns and the drive motor are connected to integrally form the lifting assembly; a base, connected to lower ends of the two lifting columns; and a groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body; when the lifting assembly is connected to the bottom of the desk board body, the transmission rod is located in the grooves.
 2. The electric height-adjustable desk of claim 1, wherein a cross beam is disposed between the two lifting columns, both ends of the cross beam are fixedly connected with upper ends of the two lifting columns respectively, the cross beam is disposed in the grooves of the frame and the transmission rod is disposed in the cross beam.
 3. The electric height-adjustable desk of claim 2, wherein a bottom surface of the cross beam is flushed with a bottom surface of the frame.
 4. The electric height-adjustable desk of claim 1, wherein a mounting groove is disposed at a side wall of a side of the desk board body close to the user, a drawer is slidably connected in the mounting groove, and the bottom of the drawer is flushed with the bottom of the desk board body.
 5. The electric height-adjustable desk of claim 4, wherein the desk board is a glass desk board, the frame is a metal frame, the desk board is fixedly connected to the top of the frame, and a top wall of the drawer is provided with an elastic pad which is elastically abutted against the bottom of the desk board.
 6. The electric height-adjustable desk of claim 1, wherein the frame comprises an outer frame and a cross bar connected within the outer frame, and the groove is disposed on the cross bar and penetrated through the bottom of the cross bar.
 7. The electric height-adjustable desk of claim 6, wherein a connection rod perpendicular to the cross bar is connected within the outer frame; a connection plate is fixedly connected on the upper end of each lifting column, and the connection plate has a first connection portion fixedly connected with the connection rod and a second connection portion fixedly connected with the bottom of the outer frame; a distance from a side wall of the desk board body close to the user to the connection rod is greater than a distance from a side wall of the desk board body away from the user to the connection rod.
 8. The electric height-adjustable desk of claim 1, wherein a pull rod is disposed between the two lifting columns, and both ends of the pull rod are fixedly connected to lower ends of the two lifting columns respectively.
 9. The electric height-adjustable desk of claim 1, wherein the electric height-adjustable desk further comprises a controlling unit, the controlling unit comprises a controller and a manual controller, and the controller is in electrical connection with the drive motor and the manual controller; a human-machine interaction interface of the manual controller is disposed at an outer side wall of the desk board body.
 10. The electric height-adjustable desk of claim 9, wherein a gap is disposed at an outer side wall of the frame, the manual controller is connected in the gap, and the human-machine interaction interface of the manual controller is in smooth transition with an outer side surface of the frame.
 11. The electric height-adjustable desk of claim 10, wherein the gap is disposed at an end of the outer side wall of a side of the frame close to the user.
 12. The electric height-adjustable desk of claim 11, wherein the bottom of the manual controller is flushed with the bottom of the frame, and a plane where the human-machine interaction interface of the manual controller is located is flushed with a plane where the outer side wall of the side of the frame close to the user.
 13. The electric height-adjustable desk of claim 9, wherein the controller is in electrical connection with the drive motor to control the drive motor to run; a USB charge interface is disposed at the outer side wall of the desk board body, and the USB charge interface is in electrical connection with a circuit of the controller.
 14. The electric height-adjustable desk of claim 9, wherein a luminous body is connected on at least one outer side wall of the desk board body, and the luminous body is in electrical connection with the controller so as to be powered to illuminate when the controller controls the drive motor to run.
 15. The electric height-adjustable desk of claim 14, wherein the luminous body is an LED lamp strip, the luminous body is disposed at a left side wall and a right side wall of the desk board body and a rear side wall of a side of the desk board body away from the user, and both ends of the luminous body both extend to a front side wall of a side of the desk board body close to the user.
 16. The electric height-adjustable desk of claim 15, wherein the luminous body is connected between the desk board and the frame. 